Regulator for regulating mask wearing tightness

Abstract

Disclosed is a regulator for regulating mask wearing tightness, the main features of which include a main patch, wherein the main patch is a long patch extended to both sides respectively. The main patch goes through two through grooves and two embedding grooves. The through grooves are close to both sides of the main patch respectively, and the embedding grooves are connected to the through grooves respectively. The width of the embedding groove is smaller than the width of the through groove. The main patch can be combined with the hanging strings of mask, so as to regulate the tightness of the hanging strings when wearing the mask.

I claim: 
     
         1 . A regulator for regulating mask wearing tightness, comprising:
 a main patch, the main patch is a long patch extended to both sides respectively; the main patch goes through two through grooves and two embedding grooves, the through grooves are close to both sides of the main patch respectively, and the embedding grooves are connected to the through grooves respectively, the width of the embedding groove is smaller than the width of the through groove.   
     
     
         2 . The regulator for regulating mask wearing tightness defined in  claim 1 , wherein the embedding grooves are located between both sides of the through grooves and the main patch respectively. 
     
     
         3 . The regulator for regulating mask wearing tightness defined in  claim 1 , wherein two hook-shaped pieces are disposed on both ends in length direction of the main patch. 
     
     
         4 . The regulator for regulating mask wearing tightness defined in  claim 2 , wherein two hook-shaped pieces are disposed on both ends in length direction of the main patch. 
     
     
         5 . The regulator for regulating mask wearing tightness defined in  claim 3 , wherein the hook-shaped piece comprises a connecting part and a hook part; the front end of the connecting part is in contact with the main patch; the hook part is in contact with the back end of the connecting part, and the hook part extends towards the back side of the main patch, the connecting part laterally penetrates a through hole. 
     
     
         6 . The regulator for regulating mask wearing tightness defined in  claim 4 , wherein the hook-shaped piece comprises a connecting part and a hook part; the front end of the connecting part is in contact with the main patch; the hook part is in contact with the back end of the connecting part, and the hook part extends towards the back side of the main patch, the connecting part laterally penetrates a through hole. 
     
     
         7 . The regulator for regulating mask wearing tightness defined in  claim 5 , wherein the orthographic projection of the end of the hook part on the main patch is located between the connecting part and the embedding groove. 
     
     
         8 . The regulator for regulating mask wearing tightness defined in  claim 6 , wherein the orthographic projection of the end of the hook part on the main patch is located between the connecting part and the embedding groove.